Center-pin for locomotives.



Y H. B; WARNER.

, 0mm: PIN r012 LOCOMOTIVES.

Patented May 16, 1911.

APPLICATION FILED OUT, 24, 1910.

V vV////V//////// 6 ATI RNE HOWARD ELDON WARNER, OE HARVEY, NORTHDAKOTA.

CENTER-PIN FOR LOCOMOTIVES.

Specification of Letters Patent.

Patented May 16,1911.

Application filed October 24, 1910. Serial No. 588,751.

To all whom it may concern:

Be it known that I, HOWARD ELDoN WAR- NER, a citizen of the UnitedStates, residing at Harvey, in the county of WVells and State of NorthDakota, have invented a new and useful Center-Pin for Locomotives, ofwhich the following is a specification.

The invention relates to improvements in center pins for locomotives.

The object of the present invention is to improve the construction ofcenter pins for locomotives, and to provide asimple, inexpensive andefiicient device, capable of reducing the liability of breakage of theking bolt, and adapted in event of the breakage of the same to enablesuch part to be easily and quickly replaced while on the road withoutimpairing the efliciency of the locomotive.

With these and other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawing, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction, within the a scopeof the claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of'the invention.

In the drawing :Figure 1 is a longitudinal sectional View of a portionof a locomotive equipped with a center pin, constructed in accordancewith this invention. Fig.2 is a plan view of the center pin. Fig. 3 is acentral vertical sectional view of the same. Fig. 4. is a similar viewof the upper portion of the center pin, taken at right angles to Fig. 3.Fig. 5 is a horizontal sectional view on the line 5-5 of Fig. 3. Fig. 6is a detail perspective view of the top plate.

Like numerals of reference designate corresponding parts in all thefigures of the drawing.

In the accompanying drawing in which is illustrated the preferredembodiment of the invention, 1 designates a hollow center pin, designedto be mounted on the supporting bolster of the pony truck 3 of a mogulor other locomotive. The center in 1 is constructed of suitable materialan of proper dimensions to adapt it for the character of locomotive onwhich it is to be used, and it is provided with an enlarged lower end orbaselongitudinal opening 6, through which passes a king bolt 7 havingthe usual eye 8 at its lower end for the reception of the front end ofthe intermediate equalizer 9 of the locomotive. The center pin'isprovided in the opposite walls of its opening 6 with longitudinalgrooves 10, oblong in cross section and having parallel side wallsforming a passage-way for the eye 8 of the kingbolt for enabling thelatter to be introduced into the center pin from the top thereof,whereby in the event of breakage of the king bolt, such part may bereplaced on the road in a short time leaving the locomotive after thebreak has been repaired in as good condition as before the break withouthaving its efficiency impaired or without necessitating any reduction inthe speed of the locomotive. This also eliminates the liability ofaccidents, which often result when it is necessary to chain up the ponytruck and the equalizer, as is necessary in event of breakage of theking bolt of an ordinary center 12 to complete the curvature of theinterior of the opening 6. The spaced bars or members 11 are preferablyformed integral with and depend from a top plate 13, having a flat lowerface 14. to fit the fiat upper edge of the hollow center pin, andprovided .with depending studs 15, fitting in corresponding recesses 16in the upper edge of the center pin for interlocking the top plate withthe center pin when the parts are assembled. The top plate is providedin its upper face with a bearing socket 17 to receive a truncated ballhead 18, having a fiat upper face and presenting a rounded lower face tocooperate with the socket to form a ball and socket joint or connection.The rounded or ball head is adapted to yield to the movements of theking bolt, and reduce to a minimum the liability of breakage of thesame. It is provided with a central opening 19 to receive the upperportion .of the king bolt, which has its upper terminal 20 threaded forthe reception of a nut 21. The nut is seated upon the flat upper face ofthe truncated ball head, and the ball or bearing head 18 is providedwith lubricant passages 22, extending through the head from the upperface thereof to the bearing plate of the face 13 for lubricating thebearing. Recesses 23 may be formed in the upper face of the bear inghead to receive a quantity of waste or other absorbent material forholding the lubricant, and suitable pivot plates 24: may be employed forcovering the grooves to exclude dust and other grit from the lubricant.A safety chain 25 is also preferably employed for connecting the bearinghead with the top plate to prevent loss of the bearing head in event ofbreakage of the king bolt. The center pin 1 supports a casting 26 of theusual construction, and it is adapted for use on all types oflocomotives employing pony trucks.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

l. A hollow center pin having a circular king bolt opening andlongitudinally grooved or enlarged thereat to form a passage-way for theeye of a king bolt, and removable means for completing the center pin topreserve the circular character of the king bolt opening.

2. A hollow center pin having a king bolt opening and provided in thewalls thereof with opposite grooves extending the entire length of theking bolt opening and forming a passage-way to permit the eye of a kingbolt to pass through the said opening.

3. A hollow center pin having a king bolt opening and provided in thewalls thereof with opposite grooves forming a passage or way for the eyeof a king bolt, and removable means normally arranged in said groovesfor completing the walls of the said king bolt opening and adapted to betaken out in event of breakage of the king bolt to permit a new part tobe inserted in place from the top of the center pin.

4s. A hollow center pin having a king bolt opening and provided in thewalls thereof with opposite grooves forming a passage or way for the eyeof a king bolt, and a top plate seated upon the center pin and providedwith means fitting in and filling the grooves of the center pin tocomplete the walls of the king bolt opening.

5. A hollow center pin having a king bolt opening and provided in thewalls thereof with opposite grooves forming a passage or way for the eyeof a king bolt, and a top plate seated upon the upper end of the centerpin and provided with spaced integral depending bars or members fittingin and filling the grooves of the center pin to complete the walls ofthe king bolt opening and removable from the grooves to permit the eyeof a king bolt to be passed through the center pin from the top thereof.

6 A hollow center pin having a king bolt opening and provided in thewalls thereof with opposite grooves forming a passage or way for the eyeof a king bolt, a top plate seated upon the upper end of the center pinand provided with spaced integral depending bars or members fitting inand filling the grooves of the center pin to complate the walls of theking bolt opening and removable from the said grooves, and cooperatingmeans on the top plate and the center pin for interlocking the formerWith the latter.

7. A hollow center pin having a horizontal bolt opening and provided inthe walls thereof with opposite grooves forming a passage or way for theeye of a king bolt, a top plate seated upon the center pin and providedat its upper face with a hearing socket, and a bearing head having arounded bearing face to fit the socket of the top plate and providedwith an opening to receive the upper end of the king bolt.

8. A hollow center pin having a king bolt opening and provided in thewalls thereof with opposite grooves to form a passage or way for the eyeof a king bolt, a cap plate seated upon the upper end of the hollowcenter pin and provided with depending bars or members fitting in andfilling the grooves of the center pin and completing the walls of theking bolt opening, a cap plate seated upon the upper end of the centerpin and provided in its upper face with a bearing socket, and atruncated ball head having an opening to receive the king bolt andpresenting a rounded lower face to the bearing socket.

9. A hollow center pin having an enlarged hollow approximatelysemi-spherical base and provided with a central circular king boltopening, said center pin being provided in the walls of its king boltopening with longitudinal grooves of a shape to permit the passage ofthe head of a king bolt, a top plate seated upon the upper end of thecenter pin and provided with rigid depending bars or members fitting inthe grooves of the center pin and extending from the top thereof to thebase of the same and having curved inner faces completing the curvedwalls of the king bolt opening, and a bearing seated upon the top plateand adapted to be connected to the upper end of the king bolt.

In testimony, that I claim the foregoing as my own, I have heretoaffixed my signature in the presence of two witnesses.

HOWVARD ELDON WARNER.

WVitnesses:

EDWARD SoHA'rz, JOSEPH 1h. HARRISON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

